Dust collector



June .19, 1923.

1,459,008 A. J. WILHARM DUST COLLECTOR FiledJune 3, 1921 2 Sheets-Sheetl AJI/ZZZQQIWZ,

June 19, 1923.

1,459,008 A. J. WILHARM DUST COLLECTOR 2 Sheets-Sheet 2 Patented June19, 1923,

time

- ADOLPH J. WILHARM, or risrannnn'wrsoonsmp IDYUST coLLEo'r-onApplication filed June 3,

closed is shownin my co-pending case, Serial No. 416,596, filed on the13th, day of October, 1920. r

In this apparatus sundry improvements are proposed, especially, theprovision of means whereby the tracks which carry the brushmay beadjusted toward and away from each other and, more specifically, toward:and away from foraminous members which-form apart'of the casing, totheend that the brush may cooperate with the said members, and sweepthesame clean of dust which may have collected thereon.

It is within the province of the disclosure to improve generally and toenhance the utility of-devices of that type to which the invention,appertains L i With the above'and other objects in view,

which 'will appear asthe descriptionproceeds, the inventionresidesin thecombination and arrangement of parts and in the details of constructionhereinafter described and claimed, it being understood that, within thescope of what is claimed, changes in the precise embodiment of theinvention shown canbe made without departing from the spirit of theinvention. I

' In the accompanying drawings;'

Figure lshowsintop. plan, device constructed in accordance with theinvention, partsbeing broken away; Figure 2 is a side elevation; Figure3 is a longitudinal, sec- "tiong Figure 4 is a: detail enlarged fromFigure.3, a'portion' of the belt which carries the brushbeing omitted;and Figure 5 is a '.fragunental transverse section showing the meanswhereby the.material is finally fed out of the machine; i

Since the device forming thesubject matter of this application is based'onthe structure shown inmy co -pending case above alluded to, thedescription may be shortened accordingly. notice being given at thepoint where thedescription of. that which isold 1921. Serial No. 474,641

ends, and the description of that which new begins.

carrying out thevinvention there is provided a box-like. casing 1,ope'nat the top and bottom for the'passage of.air,the casing beingclosed against the passage of dust, by a foraminoustop 2 and aforaminous bottom. The top 2 may consist of a layer of cloth, whereasthebottom preferably consists of a layer of cloth '3, supported on wirenetting l. The numeral 5 designates, generall means for bulging upthebottom 0 v the casing or' for;

preventing the bottom of thecasing from sagging such a device beingshown in my (so-pending case and meriting no specific and detaileddescription in. this application, For the sake of reinforcement, theopposite by cross bars 81.

side portions of the casing l may be united The casing 1, at oneendcarries and comgithe casi'ngnlv and. are journaled. on the casin gadjacent to the'ends thereof. The shafts 10 and S are provided, as shownin, Figure 2. with sprocket wheels'12 engagedby a sprocket chain 14, atightener for the chain being 'provided, as shown at 15. The numeral 9designates any suitable means fordriving the shaft 10. Within thecasing1, the shafts 10 and 11 carry sprocket wheels 16. Endless flexiblemembers such as chains] 17 are engaged with the sprocket wheels-16 andare connected'by a, transverse brush 18.- The casino: 1 has an ofi'setpocket 19, 'wherewith a tube 20. communicates.

The foregoing description include'sjthose portions of thefdevice forwhich no patentable noveltyfis claimed, inthis application,

saving sin so far as they may enter into patent,

able combinations with other parts herein ot the vtube QOfand the pocket19. *One machine, constructed as shown in'thedrawings,

may receiveair from another likemachine,

the tube 20in any suitableway. The air, laden with dust, enters thecasing land passes outwardly through the foraminous top'Q and throughthe foraminous bottom.

attermentioned'f Inpractical operation, air .laden'with dust enters thecasing 1 by way or the, dust laden air may be deliveredinto i 3 4, thedust in the air lodging on the inner surfaces of the top and the bottom.When rotation is imparted to the shaft 10, the sprocket wheels 12 andthe sprocket chain 14 drive the shaft 8. motion being transmitted to thechains 17 by the sprocket wheels 16. The brush 18 travels along theunder surface of the top of the casing, and along the upper surface ofthe bottom of the casing. The dust thus is swept off the top and thebottom of the'casing and is carried by the brush 18, into the crosschute 6, within the field of operation of the feed screw 7, the dustbeing advanced transversely of the machine, by the feed screw.

Passing to'the essentially new features of the device, it will beobserved that uprightbrackets 21 are mounted on the sides of the casing1 adjacent to one end thereof. Upright brackets 22 are mounted on theside walls of the casing ladjacent to the cross chute 6, the brackets 22being connected, if desired, by a cross bar 23 against which the brush18 strikes, to aid in ridding the brush of dust. Upper and lower guides24 extend along the sides of the casing 1, these guides being in theform of channel members, each comprising a vertical body 25, an inwardlyprojecting upper flange 26 and an inwardly projecting lower flange 27.The ends of the lower flange of the upper guide and the ends of theupper flange of the lower guide are inclined, respectively, downwardlyand upwardly, as shown best at in Figure 4. The extremities of the bodyportions 25 of the guides extend behind the brackets 21. and 22 andcarry studs 29 mounted to move in vertically elongated. slots 30 on thebrackets.

Shafts 31 extend transversely of the easing 1 and are journaled therein.Within the casing and adjacent to the sides thereof, the shafts 31 carryoppositely projecting cranks 32. Shoes 33 are attached to the lowerflange 27 of the upper guide, and to the upper flange 26 of the lowerguide, as shown in Figure 4. Links 34 are threaded. for adjustment inthe shoes 33, the links being detachably pivoted at 35 to the ends ofthe cranks 32. Externally of the casing 1, the shafts 31 carry, as shownin Figure 2, arms 36. The arms 36 are united by a longitudinallyadjustable connection, denoted generally by the numeral 37 Theconnection 37 comprises heads 38 pivoted at 39 to the arms 36, a rod orintermediate member 40 being right and left hand threaded at its ends.as indicated at 41. into the heads 38. The intermediate portion of therod 40 is threaded as shown at 42 and passes slidably through a bracket43 fixed to and outstanding from one side wall of the casing 1. Nuts 44are mounted on the threaded portion 42 of the rod 20 and are adapted toengage the 43.

In practical operation, the ends of the brush 18 ride in the guides 24,between the flanges 26 and 27, the parts 70 serving to direct the endsof the brush into the guides. The connection 37 may be moved endwise,the rod 40 sliding in the bracket 43. When the connection 37 is movedendwise, the arms 36 will be tilted, the shafts 31 being rocked, andmotion being transmitted to the guides 24, by way of the cranks 32 andthe links 34. In this way, the upper guide may be moved toward and awayfrom the top of the casing 1, and in a similar manner, andsimultaneously, the lower guide 24 may be adjusted toward and away fromthe bottom of the casing. The obvious purpose of adjusting the guideswith respect to the top and the bottom of the casing isto cause thebrush 18 to sweep along the top and the bottom with the necessarypressure. After the rod 40 has been moved endwise as above explained, itmay be held in any position to which it has been moved, by advancing thenuts 44 until they bear upon opposite sides of the bracket 43. Thenecessary adjustments can be made, since the rod 40 is threaded inopposite directions into the heads 38, and since the links 34 arethreaded into the shoes 33.

The dust which hasbeen collected is ad vanced to one end of the chute 6by the feed screw 7, the discharge member 74 feeding the dust out of theopening 73. The dust is packed by the feed screw at the end of the chute6 and there is no appreciable loss of air pressure through the opening73.

In one end wall 72 of the casing there is an opening 73 communicatingwith the chute 6. A. discharge member is located in alinement with theopening 73 and is disposed at the end of the feed screw of the dischargemember comprising radial blades 74 mounted on the shaft 8.

Having thus described the invention, what is claimed is 1. In a deviceof the class described, a. casing embodying a, screen; a cleanercomprising an endless member movable within the casing and a brushcarried by the endless member and cooperating continuously with thescreen substantially throughout the entire length of the screen; a guidetraversed by a part of the cleaner; a shaft mounted to rock in thecasing and under the control of an operator; a crank on the shaft; andmeans for connecting the crank with the guide thereby to adjust theposition of the guide toward and away from the screen, the screen beingfixed against movement with respect to the guide.

2. In a device of the'cla'ss described, a casing embodying a'screen, acleaner comprising an endless member movable within the casing and abrush carried by the endless member and cooperating with the screen,

a guide traversed by a part of the cleaner shafts mounted to rock in thecasing, cranks carried by the shafts, means for connecting the crankswith the guide, arms on the shafts, and a longitudinally adjustableconnection uniting thevarms.

3. In device of the class described, a casing embodying a screen; acleaner comprising an endless 'membermovable within the casing and abrush carried by the endless member and cooperating with the screen, aguide traversed by a part of the cleaner; shafts mounted to rock in thecasing; means for connecting the shafts operatively with the guide toadjust the position of the guide with respect to the screen; arms onthe,

shafts; a connection uniting the arms; a bracket on the casing, theconnection being slidable inthe bracket; and means on the connection andcooperating with the bracket to hold the connection against longitudinalmovement. 7

4. In a device of the class described, a casing embodying upper andlower screens; a cleaner comprising an endless member movable within thecasing anda brush carupper and lower runs of the cleaner; and means formoving both guides simultaneously toward and away from the'respectivescreens. Y

5. A device of the class described, constructed'as setforthin claim 4,and further characterized by the fact that the means for moving theguides includes shafts mounted to rock inthe casing; means'forconnecting the shafts with the guides;-means for conoperation thereof;and means for holding the shafts in any'position to which they asmy'owml have-hereto affixed my-sigp;

nature in the presence of two witnesses.

WVitnesses:

ARTHUR S. HANsoN,

HAROLD PAULSON.

ADOLPH JQWILH'ARM.

necting theshafts to secure the simultaneous

